Globe or shade for incandescent gas-lamps.



v T. J. LITLB, J1. GLOBE 08 8HADE FOR INOANDESOENT 0A8 LAMPS.

APPLIOATIOH I'ILSD !0V. 4. 1910.

Patented Jan. 2, 1912.

- 'UNIPED STATES PATENT OFFICE.-

muons TAKES m'rm, JR 0! FOOZDBUR'Y, NEW JERSEY, ASSIGNOR TO WELSBACH LIGHT COMPANY, 01' GLOUCESTER CITY, NEW JERSEY, A CORPORATION OF NEW GLOBE OR SHADE FOR INCRNDESOENT GAS-LAMPS.

JERSEY.

V Specification of Letters Patent.

Patented J an. 2, 1912.

To all whom it may concern:

Be it known that I THOMAS J. Lrrnn, J r., a resident of Woot bury, in the county of Gloucester and State of New J ersey,have invented a new and useful Improvement in Globes or Shades for Incandescent Gas- Lamps, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming partof this specification, in which- Figure 1 is a sectional side elevation showing an inverted incandescent gas lamp with my improved shade imposition; Fig. 2 is a top Inn View of the metal neck portion of the s ado; Fig. 3 is a side elevation of the same; Fig. 4 is a top plan view of modified form of the metal neck; Fig. 5 is a side elevatipn of Fig. 4; and Fig. 6 is a detail cross section of l i 5.

My invention re ates to metal neck shades of my Patent No. 961,504, dated August 15, 1908, and is designed to do away with the turmn in or out of the sapportmg screws on the urner when the sha e is removed or attached.

In the drawing, 2 represents a thick glass shade or globe without a neck, and having an enlarged hole in its top within which is secured the metal neck 3. In the view shown, this metal neck has a lower flange 4, above which are looking devices'fi, formed integrally from the body of the metal neck.

Instead of providing a recess uromul the upper portion of the metal neck to receive the burner screws, 1 now form this upper portion 6 of the metal ncck at scmratcd Points with bayonet slots T. These ots are cut down over the upper cd'ye, thence extend horizontally and are preferably provided with an upper notch s, to receive and hold the burner screws it. These bayonet notches are suitably spaced to rcceive the ordinary set screws of an inu-rted incandescent gas lamp, anti to attach the device, it is merely necessary to bring the slots into re ister with the screws, push up the shade am then turn it to en age the screws in the locking portions of tie bayonet slots. Screws may thus be used or the burner may be provided with inwar non-adjustable projections in the form of pins or otherwise, which will be suitably spaced to interlock with thc bayonet slots of the metal neck.

In Fig. 1, 10 represents the casing of the inverted lamp, and 11 the, lower flange to burners of with the bent out thereof carrying the burner screws. This flange is usaall perforated and the burner itself may be 0 any usual or desirable form. I preferably also shape the metal neck of the globe so that it will support the inner glass chimney. Thus, in the form' of Figs. 1, 2 and 3, the top portion of the metal neck is provided with an inturned flange l2, having inwardly opening slots 13, preferably provided with tn'nvardly projcctin lu'gs 1.4 at each end thereof. The inner cylinder or chimney 15, which is commonly used on these invcrtetl lamps, may be provided with integral nibs or projections 16 which will pass up through the slots 13, and then by ifting this chimney and turnnn it. the nibs will rest on the flange and hoill the inner chimney or cylinder in place. By this arrangement tie inner c tinder may be removcd tlllt inserted wit will. disturbing the outer globe or shade. Moreover, the outer globe may be tptickly and readily attached he set screw type, now commonly in use, without any 0 lllll c in the burner screws. The screws will be simply turned inwardly to their limit and then act as bayonet pins.

In F igs. 4, 5 and 6, I show another form of the invt'e tion in which the upper part of the metal neck, which is otherwise the same as in the first form, is bent inwardly atthrec separated points 17. At other points, the llangc (5' is shaped as in my patent. above rct'crrcd to, to provide an outer inwardly projecting groove is, to receive the burner screws. In this case, the burnerscrews will not be s rewed in to their extrclno inward position, but will be screwed in far enough so that they will engage the overhanging part of the llnng'o 6, but will slip l'reoly u nvard from the bent cnd portions ll. "l'lns may be used in the same way as the first form by merely pushing itu i portions in alinement witi the screws, and then turninp until the screws engage the overhanging flange portion of the neck. in this case, also, the hunt-i1 portions may be formed as ledges, as shoun 'in Fig 4, so that they can serve to support the inner chimney or cylinder by prtncctions or tubs thereon. in this case, the inner chimney will be pushed up with the nilm out. of alinemcnt with tho ledges l7, and then turned and dropped with the nibs on these ledges.

holding portions; and many other variations.

may be made, without departing from my invention, as defined in the appended claims.

I claim:

l. A metal neck glass shade having a neck portion made of one piece, said neck being provided with spaced apart interlocking devices arranged to engage inwardly extending projections on the shade-supporting portion of the burner without actuating said projections, and inwardly extending projections on the upper portion of the ring arranged to be engaged by rejections on an inner chimney, substantia ly as. described.

.2. A metal neck glass shade having a neck portion made of one piecc said neck portion icing provided at separated points with iiiterlocking mechanism arranged to enga e inwardly extending pro ections on tie shadc-supportiiig portion of the gas burner, and a plurality of inwardly extending projectioiis on the upper portion of the neck, there being openings between said projections to permit supportiii projections on an inner chimney to pass t trough, substantially as described. i

3. As a new article of manufacture, a metal neck for a glass globe, said metal neck having means for an )porting and securing a glass globe, space apart interlocking devices arranged to engage the inwardly extending pro ections on the lobe-s11 porting portion of the burner, an inward y extending projections arranged to engage outwardly extending projections on an iiincr chimney, substantiall as described.

4. A metal neck glass shade having a neck portion formed from a. single piece of wardly cxtendin metal, said neck portion having outwardly and inwardly extending pro ections, there being openings between the inwardly extending projections, the outwardly extending projections being arranged to be engaged by shade-supporting devices on the burner and the inwardly extending projections being arranged to be engaged by supportin projections on an inner chimney, whici can pass through the openings between the proections, substantially as described.

5. As a new article of manufacture, a metal neck for a glass globe formed of a single piece of metal, said neck having a plurality of notches arranged to enga e inwardly extending projections on the s adesupporting portion of the burner, and a plura ity of inwardly extcndin projections on the upper portion of the neo t, said inwardly extending projections being arranged to be engaged by supporting pro ections on an inner chimney, substantially as described.

6. As a new article of manufacture, a

glass globe or shade havin an upper holei a metallic neck secured wit iin the 101s an projecting above the glass body, said metal nee t having a plurality of recesses arranged to engage inwardly extending projections on the shade-supportin portion of the burner, and a plurality 0 inwardly extending projections on the upper portion of the neck, there being an opening between each of said projections to permit an poi-tin projections on an inner chimney to epasse upwardly therethrongh, substantially as de-- scribed.

7. A lass shade having a metal neck, said nee. being provided with spaced apartinterlockiiigdevices arranged to engage inpro'ections on the shadesupporting portion 0 the burner without actuating said projections, and inwardly extending projections on the upper orti'on of the neck arranged to be engaged jections upon an inner chimney, su stantially as described.

In testimony whereof, I have hereunto set my hand.

THOMAS JAMES LITLE, Jn.

Witnesses JOSEPH H. JOHNSON, A. G. Hansen. Jr.

prow 

